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Riachuelo - Angico, Sergipe, Brazil

Formation	Riachuelo
Member	Angico
Age:	112 - 101 Ma Early/Lower Cretaceous
Interval	Aptian - Albian
Lithology	sandstone/siltstone, siltstone, sandstone/conglomerate
Number of Collections	6
Number of Occurrences	28

Recorded Sample Locations

Location	Region	Stratigraphic Name
Coqueiro 1	Sergipe, Brazil	Riachuelo - Angico
Mangueira 1	Sergipe, Brazil	Riachuelo - Angico
Espirito Santo 11	Sergipe, Brazil	Riachuelo - Angico
Espirito Santo 2	Sergipe, Brazil	Riachuelo - Angico
Espirito Santo 3	Sergipe, Brazil	Riachuelo - Angico
Fortuna 1	Santa Rosa de Lima, Sergipe, Brazil	Riachuelo - Angico

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Bivalvia class	3	Animalia : Mollusca : Bivalvia	112.03 - 109 Ma Early/Lower Cretaceous
Tellina sp. genus	6	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : *Tellina*	112.03 - 109 Ma Early/Lower Cretaceous
Ostreida order	4	Animalia : Mollusca : Bivalvia : Ostreida	125 - 100.5 Ma Early/Lower Cretaceous
Gervillia sergipensis species	7	Animalia : Mollusca : Bivalvia : Ostreida : Bakevelliidae : Gervillia : *Gervillia sergipensis*	125 - 100.5 Ma Early/Lower Cretaceous
Gervillia solenoidea species	7	Animalia : Mollusca : Bivalvia : Ostreida : Bakevelliidae : Gervillia : *Gervillia solenoidea*	125 - 113 Ma Early/Lower Cretaceous
Neithea sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Neithea*	125 - 113 Ma Early/Lower Cretaceous
Trigoniida order	4	Animalia : Mollusca : Bivalvia : Trigoniida	125 - 100.5 Ma Early/Lower Cretaceous
Anditrigonia sp. genus	6	Animalia : Mollusca : Bivalvia : Trigoniida : Megatrigoniidae : *Anditrigonia*	112.03 - 109 Ma Early/Lower Cretaceous
Glossus sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Glossidae : *Glossus*	112.03 - 109 Ma Early/Lower Cretaceous
Cheloniceras sp. genus	6	Animalia : Mollusca : Cephalopoda : Ammonoidea : Douvilleiceratidae : *Cheloniceras*	125 - 113 Ma Early/Lower Cretaceous
Douvilleiceras sp. genus	6	Animalia : Mollusca : Cephalopoda : Ammonoidea : Douvilleiceratidae : *Douvilleiceras*	112.03 - 109 Ma Early/Lower Cretaceous
Douvilleiceras mammillatum species	7	Animalia : Mollusca : Cephalopoda : Ammonoidea : Douvilleiceratidae : Douvilleiceras : *Douvilleiceras mammillatum*	125 - 100.5 Ma Early/Lower Cretaceous
Ammonoidea order	4	Animalia : Mollusca : Cephalopoda : Ammonoidea	112.03 - 109 Ma Early/Lower Cretaceous
Gastropoda class	3	Animalia : Mollusca : Gastropoda	125 - 100.5 Ma Early/Lower Cretaceous
Paraglauconia sp. genus	6	Animalia : Mollusca : Gastropoda : *Paraglauconia*	112.03 - 109 Ma Early/Lower Cretaceous

References

Hessel M. H. (2004) Gervillia (Gervillia) solenoidea Defrance, 1820 (Bivalvia Bakevelliidae) do Neo-Aptiano de Sergipe, Brasil, Revista Brasileira de Paleontologia 7 1, 67-76

Hessel M. H. (2005) Anditrigonia britoi n.sp. (Bivalvia) do Eo-Albiano de Sergipe, Brasil, Arquivos do Museu Nacional, Rio de Janeiro 63 3, 437-450

Mello L. H. C., Mello F. T., et al (2007) A new species of Gervillia Defrance (Bivalvia, Bakevelliidae) from the Aptian-Albian transition of Sergipe, Brazil, Revista Brasileira de Paleontologia 10 1, 63-69

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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